7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid → 5-{5-[7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-thiophene-2-sulfonic acid amide

HRID 1784591Notes

Reaction equation

HRID 1784591 reaction equation
[CH:1]1([C:4]2[N:9]3[N:10]=[CH:11][C:12]([C:13]([OH:15])=O)=[C:8]3[N:7]=[C:6]([C:16]3[CH:21]=[CH:20][C:19]([C:22]([F:25])([F:24])[F:23])=[CH:18][CH:17]=3)[CH:5]=2)[CH2:3][CH2:2]1.O[NH:27][C:28]([C:30]1[S:31][C:32]([S:35](=[O:38])(=[O:37])[NH2:36])=[CH:33][CH:34]=1)=[NH:29]>>[CH:1]1([C:4]2[N:9]3[N:10]=[CH:11][C:12]([C:13]4[O:15][N:29]=[C:28]([C:30]5[S:31][C:32]([S:35]([NH2:36])(=[O:38])=[O:37])=[CH:33][CH:34]=5)[N:27]=4)=[C:8]3[N:7]=[C:6]([C:16]3[CH:17]=[CH:18][C:19]([C:22]([F:25])([F:23])[F:24])=[CH:20][CH:21]=3)[CH:5]=2)[CH2:3][CH2:2]1

Participants

3

Reactant 2

HCID 666503207-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acidHCID 178513361HCID 178513361, compound

Product 1

HCID 160689875-{5-[7-Cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-yl]-[1,2,4]oxadiazol-3-yl}-thiophene-2-sulfonic acid amide

Procedure

The title compound was prepared from 7-cyclopropyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.29) (174 mg, 0.5 mmol) N-hydroxy-5-sulfamoyl-thiophene-2-carboxamidine (example B.2) (166 mg, 0.75 mmol) and according to general procedure II. Obtained after purification by flash chromatography (ethyl acetate/heptane) and crystallization (dichloromethane/ethyl acetate) as a yellow solid (180 mg, 68%). MS (ISP) 533.3 [(M+H)+]; mp 290° C.

Workup

  1. customObtained
  2. customafter purification
  3. customby flash chromatography (ethyl acetate/heptane) and crystallization (dichloromethane/ethyl acetate) as a yellow solid (180 mg, 68%)

Sources & evidence

ORD record
ord-a07b40863f6a45c181ec20897f2482e8
Source dataset
uspto-grants-2009_03
Patent number
US07504404B2

Reaction notes

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